68 Messrs. C. R. Boettger and L. Mliller on 



where this species occurs is inhabited by a well-marked 

 geographical race or subspecies. We first give a rather 

 accurate description of Lacerta galloti galloti, and then 

 differential diagnoses of the new subspecies. 



Lacerta galloti galloti, Dum. et Bibr. 



Lacerta galloti, A. M. C, Dum^ril et G. Bibron, Erp^tologie g^nerale, 

 tome V. (Paris, 1839), pp. 238-240. 



Type-locality. Island of Tenerife. 



Proportions. General body-form stout ; head large, its 

 length somewhat more than \ of the length of bead and 

 body, moderately flattened ; S with the cheeks very broad. 

 Snout slender, rounded in front. Neck slightly constricted 

 in front of shoulders ; rump broad, moderately flattened ; 

 limbs strong. Length of fore limb about ^, of hind limb 

 about ^, of tail about twice that of head and body. 



Scales. Rostral not in contact with nostril. Only post- 

 nasal in contact with first and second supralabial. 5 of the 

 8 supralabinls in front of subocular. Fronto-nasal as long as 

 broad, usually shorter than prefrontals ; prsefrontals 1^ to 

 If as long as broad. Frontal very variable in size and shape, 

 its length- sometimes equal to breadth, but sometimes even 

 1^ to If of it ; anterior angle pointed or obtuse, always 

 sliorber than its distance from rostral. Fronto-parietals 1^ 

 to If as long as broad. Parietals 1^ to If as long as broad, 

 as long or somewhat longer than distance of frontal from 

 snout. Interparietal generally small. Occipital very 

 variable in shape and size; in some specimens it is much 

 larger than the interparietal, in others equal to it, its length 

 being sometimes equal to the breadth, but sometimes much 

 longer. In some specimens the lower margin of occipital is 

 as broad as frontal, in others half its breadth, &c. 4 supra- 

 oculars, the two central ones largest, separated from the 

 supraciliaries by a well-defined series of granules. Orbit 

 surrounded bj' a ring of small shields, the anterior and 

 inferior ones are very small, whereas the posterior 3 or 4 are 

 large. The uppermost of these four shields, which is the 

 largest, is in contact with the last supraciliary and the last 

 supraocular. Behind these four shields there are three, of 

 whicii the lowermost, which touclies the subocular and the 

 seventh supralabial, is the largest ; the uppermost, whicli 

 sometimes extends to the lower parietal margin, is the 

 smallest. Lower parietal margin bordered by 5 supra- 

 tcmporals — larely 4 or 6. Temporal scales small, the upper 

 rounded or polygonal ones usually smaller than the lower 



